Davidlloydite
Hawthorne F C, Cooper M A, Abdu Y A, Ball N A, Back M E, Tait K T
Mineralogical Magazine 76 (2012) 45-57
Davidlloydite, ideally Zn3(AsO4)2(H2O)4, a new arsenate mineral
from the Tsumeb mine, Otjikoto (Oshikoto) region, Namibia:
description and crystal structure
Locality: Tsumeb, Namibia
_database_code_amcsd 0018665
5.9756 7.6002 5.4471 84.2892 90.4920 87.9958 P-1
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2)  U(1,3)  U(2,3)
Zn1       0     .5     .5  .6 .01224 .01425 .01053 .01178 .00005  .00126 -.00034
Cu1       0     .5     .5  .4 .01224 .01425 .01053 .01178 .00005  .00126 -.00034
Zn2  .23922 .10407 .81081     .01226 .01204 .01445 .01032 .00121 -.00006 -.00186
As   .25896 .87032 .33696     .00916 .00945 .00940 .00869 .00002  .00025 -.00125
O1    .4813  .7644  .2259      .0153  .0119  .0140  .0204  .0007   .0037  -.0045
O2    .2996  .8972  .6354      .0146  .0200  .0144  .0096  .0007  -.0011  -.0027
O3    .0271  .7464  .3144      .0128  .0103  .0120  .0157 -.0014  -.0012   .0002
O4    .1952  .0630  .1674      .0145  .0209  .0116  .0105  .0015  -.0006   .0010
O5    .2229  .4010  .2726      .0181  .0253  .0134  .0155  .0009   .0037  -.0007
O6    .2711  .5420  .7834      .0208  .0190  .0162  .0270 -.0009   .0031  -.0008
H1     .211  .2762   .245       .039
H2     .232   .453   .101       .056
H3     .413   .481   .748       .058
H4     .325   .662   .791       .059